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E. I. SMITH.

INTAGLIO PRINTING PRESS.

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Patented Oct. 28, 1919.

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INTA-GLI() PRINTING PRESS.

APPLICATION FILEDV FEB. Io. 19m.

Patented Oct, 28,1919.

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E. l. SMITH. INTAGILIO PRINTING PRESS.

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Patented Oct. 28, 1919.

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UNITED STATES PATENT OFFICE.

ERNEST JAMES SMITI-I, OF'LONDON, ENGLAND, ASSIGNOR T0 THE GOSS PRINTING PRESS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

IN TAGLIO-PRIN TIN Gr PRESS.

wiener.

Original application filed September 5, 1916, Serial. No. 118,519.

Specification of Letters Patent.

10, 1919. Serial No. 276,132.

To all 'LU/wm t may concern:

Be it known that I, ERNEST JAMES SMITH, a subject of the King of England, now residing in London, England, and recently a resident of Chicago, in the county of Cook, State of Illinois, U. S. A., have invented certain new and useful Improvements in Intaglio-Printing Presses, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to intaglio printing presses of the type shown and described in my pendingapplication for Letters Patent, Serial No. 118,519, iled September 5, 1916, of which this application is a division, and has for its objects to provide new and improved means for adjusting the impression cylinders relatively to the printing cylinders whereby the impression cylinders may be adjusted with relation to the printing cylinders either separately or in unison; also to improve presses of this description in sundry details hereinafter pointed out. I accomplish these objects as illustrated in the drawings and as hereinafter described. What I regard as new is set forth in the claims.V

In the drawings Figure l is a side view of a press embodying my improved construction and arrangement;

Fig. 2 is a horizontal section through the machine of Fig. l, being` taken substantially on the line 2 2 of Fig. l;

Fig. 3 is an enlarged detail showing the connections of one of the driving gears with its shaft, as hereinafter described;

Fig. 4 is an enlarged detail, being a section taken substantially on line 4 4 of Fig. l;

Fig. 5 is substantially a vertical section taken on line 5-5 of Fig. 4; and

Fig. 6 is a section taken substantially on line 6-6 of Fig. 2.

Referrimq` to the drawings,-15 indicates the main frame of my improved press eX- tending above and below a floor 16 provided for supporting carriages 17-18 which are adapted to be pushed along suitable rails extending transversely of the press for supporting in position a plurality of rolls of paper 19. Intaglio printing cylinders 20421 of any suitab 4pe are revolubly mounted upon. the framework at opposite ends thereof. The lower portion of each of the cylinders 20 21 extends down into a suitable container 22 adapted to be provided with a supply of appropriate inlr or water color whereby. as the cylinders rotate a supply is taken up by the surfaces of the cylinders. Light linely-adjustable Scrapers 23 are provided as is common in presses of this type for removing from the surfaces of the cylinders the surplus ink or other coloring matter taken up thereby. The color receptacles 22 are adjustable up and down relative to the cylinders 20421 by means of screws 24 upon which the receptacles are mounted, the screws 24 for each of thereceptacles being adapted to be rotated by means of a hand wheel 25 acting upon the screw through the medium of a shaft 26 and bevel gears 27 and 28.

vImpression cylinders 529-30 are slidably mounted in the framework 15 by .means of bearing blocks 31 (see Fig. 5). Above each of' the bearing blocks 31 is mounted a slideblock 39. which is yieldingly held through the medium of a spring 33 in spaced relation to the block 3l, the movement of the block 32 relative to the block 3l being controlled and limited by means of bolts 34. 35 indicates a screw-threaded bolt having a swiveled connection at its lower end with the slide-block 3Q. A worm gear 36 is mounted by means of screw-threads upon the bolt 35 a short distance above the slide-block 32, and a second worm gear 37 is slidably mounted upon the said Vbolt 35 a short dif'- tance above the worm gear 36, being held by a suitable key (not shown) against rotation relative to the bolt 35. The worm gear 36 meshes with a worm 38 iiXedly mounted upon the transversely-extending shaft 39, and the worm gear 37 meshes with a worm 4() iiXedly mounted upon a transversely-extending shaft 41. Both of the gears 36-37 are held in position relative to the worms 38-40 by reason of engagement with suitable portions of the framework 15. As will be readily understood, when the gear 36 is rotated 'through the medium of the shaft 39 and the worin 38, the bolt 35 will be raised or loweredrelative to the framework l5, the bolt being' held against rotation by the worm 40 engaging" the worm gear 37. Cn the other band-,-l when the 'worin gear B7 is :rotated through the medium of the shaft 41 and the worm 40, the bolt 35 is likewise moved up or down relative to the framework, the gear 36 in that'cas'e being held against rotation by its engagement with the worm 38. It will be understood that each end of each of the impression cylinders 29-30 is provided with mechanism of the type just described, the worms 3'8-40 being mounted upon opposite ends of the shafts 39-41 which extend from one side of the press to the other.

The shafts 39-41 are provided at one side of the press with hand wheels 42-43, respectively, by which the shafts 39-41 may be rotated for moving'the bolts 35 up and down as desired. As will be readily understood, when the bolts 35 of either of the impression cylinders 29-30 are nmoved downward together the slide-blocks 32 will be moved downward, serving to compress the springs 33, causing such impression cylinder tohave the desiredpressure upon the adjacent printing cylinder 2O or 21. When the bolts .35 are moved upward, the blocks 32 are given an upward movement, serving first to relieve Yay part of the tension of the springs 33 and serving later to move the blocks 31 and the impression cylinders 29-30 positively upward out of contact with the printingv cylinders.

Means is provided for rotating the shafts 39 at opposite ends of the press -in unison, comprising' bevel gears 44 mounted upon said shafts (see'F-ig. '4) meshing with bevel gears 45 mounted upon a vlongitudinallyextending shaft 46 which is connected by means of a worm gear 47 (see Fig. 1) and aworm 48l with-the driving shaft 49 of a motor 50. The motor `50 is'provided with suitable controller' mechanism whereby it may be set into operation in either direction for rotating theshaft 46 as desired for moving the impression cylinders 29-30 in unison either into or out of operative position.

With `the cylinders 20, 21,29 and 30 being driven in operative position by the means hereinafter described, a web 51 from one 'of the rolls of paper 19 is fed between the printing `cylinder 20 and the impression cylinder 29, thence over suitable `steam drying coils of any suitable type, thence between the printing cylinder21 and the impression cylinder 30, thence over other steam drying coils 53 to a slitting device 54 of any suitable type. The two portions of the web separated by the slitting device 54 are superposed upon each other by means of angle bars 555-56 of `any suitable type, whence they are run together over a former 57 by which they are'l given a longitudinal fold preparatory to beingfperfected for delivery by any suitable type of fold-ing device not shown. The slitting device 54, the angle bars 555-56, and the former 57 are supported iii-.position by a suitable framet-vorl'r-58,.v

The web 51, in the construction shown, is led over and about a considerable number of guide rollers which it is not believed to be necessary to describe or to refer to specifically. Two driven rollers 59-60 are provided supported by the framework 58, driven by suitable gearing from a longi- Ytudinally-extending shaft 61 which in turn is driven by bevel gears 62-63 from a vertically-extending shaft 64 driven by means of .bevel gears 65-66 from a shaft 67. The folding device is also preferably driven from the shaft 67.

The means for driving the press comprises a. motor 68 of any suitable type provided with a pinion 69 on the armature shaft 70. A gear 71 is revolubly mounted upon a shaft 72, being adapted to be operatively connected with said shaft so as to rotate therewith by means 'of a suitable clutch mechanism 73 which is adapted to be thrown into and out of operation by means of a. yoke vlever 74 pivotally mounted upon the framework of the press. The shaft 72`is connected by means of bevel gears 75-76 with a main driving shaft 77 of the press. The driving shaft 77 is connected by means of bevel gears 7 8-7 9 with a transversely-extending shaft 80, and is connected by means of bevel gears 81-82 with a transversely-extending shaft S3 at the opposite end of the machine. The gears 79-82 are connected to the shafts 80-S.3, respectively, by means of suitable ratchet mechanism comprising dogs 'S4-35 mounted upon the gears adapted to engage suitable ratchet wheels 85al mounted upon the shafts. As is best shown in Fig. 3, the gear 79 is adapted to drive the shaft 8O in clockwise direction in Fig. The arrangement of the ratchet mechanism by which the gear82 is connected to the shaft S3 is reversed, whereby the vgear 82 is adapted to drive the shaft S3 in the opposite direction. The shaft 77 is provided at one end with a gear 7 7a which meshes with a smaller gear 77b mounted upon the shaft 67 for driving the folding device and the rollers 60 and 59, as vabove described. The shafts 80 and 83 serve through the medium of tra-ins of gears to drive the cylinders 20-21, said trains comprising gears 86, 37 and S3, and 86a, 87a and S8, respectively. `With the motor 68 rotating in countercloclrwise direction in Fig. 1, and with the clutch 73 in operation for connecting the gear 71 with the shaft 72, the printing cylinder 2O will be driven at the desired speed in counterclockwise direction in Fig. 1, and the printing cylinder 21 will be driven in clockwise direction in said figure, as will be readily understood. Additional means is provided for driving the printing cylinders 20-21 at a slower speed when the impression cylinders 29-30 have beenv moved upward out of operative engagement with the printing cylinders 20H21. This rotation of the printing cyl inders 20-21 independently of the remainder of the press is provided in order to keep the design upon the printing cylinder in proper condition'for printing, this result being attained by the rotation of such printing cylinders in the color receptacles 22, thus preventing the drying of the color upon the designs. In the construction shown means is provided whereby the operation of moving the impression cylinders out of contact with the printing cylinders acts automatically to shift the driving means from the operative fullspeed driving of the whole press to the slow-speed driving of the printing cylinders 2.0*21 independently of the remainder of the press and the folding device.

The means by which the slow-speed driving of the printing cylinders is effected comprises a gear 39 mounted upon a short shaft 90, said gear being in mesh with the driving gear 69 of the motor. The shaft 90 is provided with a worm 91 which meshes with a worm gear 92 mounted upon a longitudinally-eXtending shaft 93. The gear 92 is provided with pawl and ratchet mechanism similar to that shown in F ig. 3 by which the gear is operative for driving the shaft 93 in the direction indicated by the arrow upon the shaft 93 in Fig. 2, but is adapted to permit the said shaft 93 to rotate at a greater speed in the same direction independently of the said gear 92. The shaft 93 in turn is connected by means of spiral gears with the shafts -83, said shaft 93 being provided with spiral gears 94-95 which mesh with spiral gears 96 97 mounted upon the shafts 80-83, respectively.

When the motor 68 is driving the entire press through the clutch 73, the shaft 93 will be driven at comparatively high speed in the direction indicated by the arrow thereon in Fig. 2, the pawl and ratchet connection between the shaft 93 and the gear 92 permitting such rotation of the shaft 93 independently of the much slower rotation of the gear 92 in the same direction. When the clutch 7 3 is thrown out of operation, the connection between the motor and the printing cylinders through the shafts 72 and 77 is broken. The connection between the motor and the printing cylinders is then n'iaintained through the gear 89, the

shaft90, the worm 91, the worm gear 92, the shaft 93, and the spiral gears 94., 95, 96 and 97, which drive the shafts 30H83 in the same direction as formerly but at a very much reduced speed. By reason of the pawl and ratchet connection between the shafts 80-83 and the gears T9-32, the slow-speed rotation of said shafts through the medium of the shafts and 93 does not serve to rotate the shaft 77, whereby the entire press including the folding devices is permitted to remain silent with the exception of the printing cylinders 2O and 2l.

The means for throwing the clutch 7 3 out of operation for transferring from the full-speed driving of the entire press to the slow-speed driving of the printing rollers alone comprises a lever 98 pivotally mounted upon the framework 15 carrying at one end a lug or roller 99 overlying an arm 100 carried by the slide-block 31 upon which the impression cylinder 29 is revolubly mounted. The opposite end of the lever 98 is pivotally connected to a link 101, the lower end of which (see Fig. 6) is pivotally connected to one arm of a bellecrank lever 102, the other arm of which is pivotally connected to a link 103 which has pivotal connection with the clutch-shifting lever 74. A spring 104 is interposed between a portion of the framework 15 and a collar 105 iXedly mounted upon the link 103, serving to hold the link 103 yieldingly in the position which itoccupies when the clutch 73 is in opera tive position. When the shaft 46, or the hand wheel 43, is rotated for effecting an upward adjustment of the impression cylinder 29, the arm 100 serves to swing the lever 98, moving the link v101 downward and throwing the link 103 to the left in Fig.

6, serving to move the clutch 73 out of operative position, and serving thus to effect the slow-speed driving of the cylinders 20-21 in lieu of the high-speed driving of the entire press.

I donot herein claim the feature of driving the printing cylinders at a comparatively much slower speed while the re` mainder of the press is permitted to rcinain at rest, or the automatic control. of the change speed mechanism, as those features form the subject-matter of my said original application.

lVhat I claim as my invention and desire to secure by Letters Patent, is-

1. In a printing press, the combination of a plurality of printing cylinders, impres sion cylinders adapted to cooperate with said printing cylinders, bolts operatively connected with said impression cylinders and adapted by their rotation to move said impression cylinders out of contact with the printing cylinders, means for moving said bolts longitudinally of themselves in unison, a motor for operating said bolt-moving means, and other means for moving said bolts longitudinally of themselves independently of said `motor.

2. In a printing press, the combination of a plurality of printing cylinders, impression cylinders adapted to cooperate with said printing cylinders, bolts operatively conllO nected with said impression. cylinders and 1.30

adapted by movement longitudinally of themselves to move said impression cylinders out of contact with said printing cylinders, nuts secured by means of screwthreads upon said bolts and adapted to revolve upon said bolts in fixed position relative to the press for moving the bolts longitudinally, means for rotating said nuts in unison for adjusting said impression cylinders simultaneously relative to said printing cylinders, and other means for rotating either of said bolts relative to the nut mounted thereon independently of the other bolt for adjusting the corresponding impression cylinder relative to its printing cylinder.

3. In a printing press, the combination of a plurality of printing cylinders, impression cylinders adapted to coperate with said printing cylinders, bolts operatively connected with said impression cylinders and adapted by movement longitudinally of themselves to move said impression cylinders out of contact with said printing cylinders, nuts secured by means of screwthreads upon said bolts and adapted to rer volve upon said bolts in Xed position relative to the press for moving the bolts longitudinally, worms for rotating said nuts by power applied through the worms but adapted to prevent rotation of the nuts by power applied to the nuts independently of the worms, means for rotating said bolts in unison for adjusting said impression cylinders simultaneously relative to said printing cylinders, and other worm means for rotating either of said bolts relative to the nut mounted thereon independently of the other bolt for adjusting the corresponding impression cylinder relative to its printing cylinder.

4. In a printing press, the combination of a plurality of printing cylinders, impression cylinders adapted to coperate with said printing cylinders, adjusting devices connected with said impression cylinders respectively for adjusting them relative to said printing cylinders, hand wheels connected with said adjusting devices respectively for adjusting said impression cylinders separately, and a shaft connecting together the adjusting devices of the several impression cylinders for eifecting an adjustment of said impression cylinders in unison.

In a printing press, the combination of a plurality of printing cylinders, impression cylinders adapted to coperate with said printing cylinders, adjusting devices connected with said impression cylinders respectively for adjusting,them relative to said printing cylinders, hand wheels connected with said adjusting devices respectively for adjusting said impression cylinders separately, a shaft connectingjtogether the adjusting devices of the several impression cylinders for edecting an adjustment of said impression cylinders in unison, and a motor for rotating said shaft in either direction as desired.

6. In a printing press, the combination of of a plurality of printing cylinders, impres sion cylinders adapted to coperate with said printing cylinders, adjusting screws Connected with said impression cylinders respectively for adjusting them relative to said printing cylinders, gears mounted on said adjusting screws respectively adapted by their rotation to adjust the position of said screws, and means for rotating said screws relative to said gears for adjusting the position of said screws.

7. In a printing press, the combination of a plurality of printing cylinders, impression cylinders adapted to coperate with said printing cylinders, adjusting screws connected with said impression cylinders respectively for adjusting them relative to said printing cylinders, gears mounted on said adjusting screws respectively adapted by their rotation to adjust the position of said screws, means for rotating said gears in imison, and means for rotating said screws separately relative to said gears for adjusting the position of said screws.

8. In a printing press, the combination of a plurality of printing cylinders, impression cylinders adapted to coperate with said printing cylinders, adjusting screws connected with said impression cylinders respectively for adjusting`them relative to said printing cylinders, gears mounted on said adjusting screws respectively adapted by their rotation to adjust the position of said screws, a shaft operatively connected with said gears for rotating them in unison, a motor for rotating said shaft, and means for rotating said screws separately relative to said'gears for adjusting the position of said screws.

9. In aV printing press, the combination of a plurality of printing cylinders, impression cylinders adapted to coperate with said printing cylinders, adjusting screws connected with said impression cylinders respectively for adjusting them relative to said printing cylinders, gears mounted on said adjusting screws respectively adapted by their rotation to adjust the position of said screws, other gears feathered on said screws respectively, and means for rotating said last-named gears separately for adjusting the position of said screws.

10. In a printing press, the combinationof a plurality of printing cylinders, impression cylinders adapted to coperate with lsaid printing cylinders, adjusting screws connected with said impression cylinders respectively for adjusting them relative to said printing cylinders, gears mounted by means of screw-threads upon said screws respectively, means for holding said gears substantially in liXed position revoluble about said screws whereby upon the rotation of said gears said screws are adjusted in position, means for holding said gears against rotation as desired, and means for rotating said screws relative to said gears for adjusting the position of said screws.

ll. In a printing press, the combination of a plurality of printing cylinders, impression cylinders adapted to coperate with said printing cylinders, adjusting screws connected with said impression cylinders respectively for adjusting them relative to said printing cylinders, worm gears mounted by means of screw-threads upon said screws respectively, means for holding said gears against movement in a direction longitudinally of the screws, Worms meshing with said worm gears, means for rotating said worms in unison for adjusting said impression cylinders in unison, and means for rotating said screws relative to said gears for adjustingthe position of said screws.

l2. In a printing'press, the combination ot' a plurality of printing cylinders, impression cylinders adapted to coperate with said printing cylinders, adjusting' screws connected with said impression cylinders re spectively for adjusting them relative to said printing cylinders, worm gears mounted by means of screw threads upon said screws respectively7 means for holding said gears against movement in a direction longitudinally of the screws, worms meshing with said worm gears, means for rotating said worms in unison for adjusting said impression cylinders in unison, other worin gears feathered on said screws respectively, and worms meshingwith said last-named worm gears respectively for rotating said gears for adjusting said screws separately.

ERNEST JAMES SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

